What is the purpose of a knock sensor harness?

A knock sensor harness connects the engine's knock sensor to the main engine control unit (ECU). This connection allows the ECU to receive signals about engine knock, which is a harmful combustion event, and adjust engine timing to prevent damage and optimize performance.

Does this harness come with the knock sensor itself?

No, this part is specifically the harness that connects the knock sensor to the Pro-Flo 4+ Ford Coyote EFI system's main engine harness. The knock sensor itself is a separate component.

Is this harness compatible with other Edelbrock EFI systems?

This knock sensor harness is designed as an auxiliary support item for the Pro-Flo 4 Plus Ford Coyote EFI Systems. It is intended to plug into the specific 'Knock' labeled connector on that system's main engine harness.

1 / 2

Specifications

Brand: Edelbrock
Part #: 36125
UPC: 085347361250

Edelbrock Ford Coyote 5.0L Pro-Flo 4 Plus Knock Sensor Harness

Name: Edelbrock Ford Coyote 5.0L Pro-Flo 4 Plus Knock Sensor Harness
Brand: Edelbrock
SKU: edelbrock-edelbrock-ford-coyote-5-0l-pro-flo-4-plus-knock-sensor-harness-t14-463957
Price: 66.53 USD
Availability: BackOrder

$66.53

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 2004 Chevrolet Express 1500. Edelbrock Pro-Flo 4 Plus Knock Sensor Harness connects to your EFI system for proper engine management.

Key Features

Fits 2004 Chevrolet Express 1500.
Auxiliary support harness for Edelbrock Pro-Flo 4+ Ford Coyote EFI Systems.
Connects to the main engine harness connector labeled 'Knock'.
Ensures proper communication between the knock sensor and the EFI system.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

Secure CheckoutFast Shipping631-982-0042

About this part

Product Details

If you're upgrading your 2004 Chevrolet Express 1500 to a modern fuel injection system with the Edelbrock Pro-Flo 4+ EFI kit, this knock sensor harness is a necessary piece of the puzzle. It's designed to work specifically with the Pro-Flo 4 Plus Ford Coyote EFI systems, acting as a crucial link between your engine's knock sensor and the main engine harness connector.

This harness is an auxiliary support item, meaning it's an add-on to ensure your EFI system functions correctly. It plugs directly into the connector labeled 'Knock' on the Pro-Flo 4 Plus Ford Coyote Main Engine Harness. This connection is vital for the EFI system to detect and react to engine knock, helping to protect your engine and optimize performance.